[DRE-maint] ruby-redis-namespace is marked for autoremoval from testing

[Debian testing autoremoval watch]

ruby-redis-namespace 1.4.1-1 is marked for autoremoval from testing on 2014-09-02

It (build-)depends on packages with these RC bugs:
755320: ruby-redis: FTBFS: ERROR: Test "ruby2.1" failed: Running tests for ruby2.1 using debian/ruby-tests.rake ...